KR20110105392A - Method and system for controlling the working status of an electric device - Google Patents

Abstract

The present invention provides a method and a corresponding system 12, 32 for controlling the working state of the first device 10, 30. The first device is connected with the second devices 11, 31. The method comprises: a first analyzing step S20 for analyzing whether the second device is using the first data provided by the first device; And a control step S21 for controlling a working state of the first device based on the result of the first analysis step. According to embodiments of the present invention, the working state of the first device may be changed when the second device does not temporarily use the first data provided by the first device, thereby saving energy, Hardware resources can be saved.

Description

METHOD AND SYSTEM FOR CONTROLLING THE WORKING STATUS OF AN ELECTRIC DEVICE}

The present invention relates to electrical devices, and more particularly to a method and system for controlling a working state of an electrical device.

Today, more and more electrical devices have become part of a person's daily routine and routine. As a result, data exchanges between electrical devices are very common, for example, a DVD player provides media data to a TV; The set top box STB provides information such as media data, email, images, etc. to the TV; The scanner provides the scanned data to a database or data analyzer.

However, among the electrical device exchange data, a case often occurs where a device provides a service to another device that does not use the service. This can lead to wastage of energy as well as hardware resources (eg memories, channels).

The present invention provides a technical solution for controlling the working state of a first device, wherein the first device is connected with a second device. The method includes a first analyzing step for analyzing whether the second device is using the first data provided by the first device; And a control step for controlling a work state of the first device according to the analysis result of the first analysis step.

According to an embodiment of the present invention, there is provided a method for controlling a working state of a first device, wherein the result of the first analyzing step shows that the second device is not using the first data. The control step is:

-Stopping the first device from providing the first data to the second device;

At least one of generating information indicating that a second device is not using the first data.

According to another embodiment of the present invention, a system for controlling a working state of a first device is provided, wherein the first device is connected with a second device, and the system is provided with: a second device provided by the first device. A first element configured to analyze whether the first data is in use; And a second element configured to control a working state of the first device according to the analysis result obtained by the first element. In this connection, the second element comprises at least one of the following units: if the analysis result obtained by the first element indicates that the second device is not using the first data, the first element; A third unit configured to cause a device to cease providing the first data to the second device; A fourth unit, configured to generate information indicating that the second device is not using the first data.

According to a preferred embodiment of the present invention, after stopping providing the first data, the first device is further configured to provide the first data to the second device when the second device needs to use the first data. Can be resumed.

According to an embodiment of the present invention, the operating state of the first device may change when the second device is not temporarily using the first data provided by the first device, for example, to save hardware resources. And stop providing the first data to save energy.

Other features and advantages of the present invention will appear in the description of the following non-limiting exemplary embodiments with reference to the accompanying drawings. In the drawings, like or identical reference numerals represent similar or identical technical features.

1 shows a system for controlling a working state of a first device and corresponding first and second devices in accordance with an embodiment of the invention.
2A is a flowchart of a method of controlling a working state of a first device according to an embodiment of the present invention.
2B is a flow chart of a method for controlling a work state of a first device according to another embodiment of the present invention.
FIG. 2C shows the internal flow of step S20 shown in FIG. 2A in accordance with an embodiment of the present invention. FIG.
3 shows a system for controlling a working state of a first device and corresponding first and second devices in accordance with an embodiment of the invention.
4A is a block diagram of a system for controlling a working state of a first device according to the first embodiment of the present invention.
4B is a block diagram of a system for controlling a working state of a first device according to the second embodiment.

1 shows a system for controlling a working state of a first device and corresponding first and second devices according to an embodiment of the invention. In this figure, the first device 10 is connected to the second device 11 via a wired or wireless link, thereby providing first data 13. The system 12 is integrated with the first device or in communication with the first device 10 via a wired or wireless link to control the working state of the first device 10. Although one arrow is used to represent the exchange between the first and second device in FIG. 1, it is noted that this does not limit the protection scope of the present invention. According to an embodiment of the invention, the second device 11 may also transmit information to the first device 10.

In addition, the first device referred to herein may be any kind of electrical device for providing data to another device, such as, for example, an STB, DVD player, CD player, radio, scanner, computer, or the like. You should know The second device is not limited to the above-mentioned TV, which may also be an electrical device that can be used to receive data from other devices, such as loudspeakers, displays, data processing / storage devices, and the like.

Thus, the first data may be any type of data, for example, audio video (AV) content, pure audio content, pure video content, emails, images, including audio / video information provided to the TV by the STB. Or audio and / or video content provided to a TV by a DVD player, data output to a display or loudspeaker by a computer, scanned data provided to a data processing / storage device by a scanner, and the like. This applies to the second data.

2A shows a flowchart of a method for controlling a working state of a first device according to an embodiment of the present invention. In this embodiment, the first device 10 provides the first data 13 to the second device 11. The method comprises: a first analysis step S20 for analyzing whether the second device 11 is using the first data 13 provided by the first device 10; A control step S21 is included, in which the system 12 controls the working state of the first device 10 based on the result of the first analysis step.

First Example

In the first embodiment of the present invention, without losing generality, a scanner has been used as an example of the first device 10, which will be represented by the scanner 10 in this embodiment; As an example of the second device 11 a data analysis device such as a computer or the like has been used and will be represented by the computer 11 in this embodiment. System 12 is integrated into scanner 10. The scanner 10 scans a particular scanning object, such as parameters of image, text or body signs, and provides scanned data, which is the first data 13, to a second device, which is the computer 11. In this embodiment, the first data 13 provided by the scanner 10 is represented as scanned data 13.

In this embodiment, the first analysis step S20 is implemented in this way:

The computer 11 can confirm whether to use the scanned data 13 provided by the scanner 10 and periodically report to the system 12 integrated inside the scanner 10.

Based on the report from the computer 11, the system 12 may obtain the analysis result of the first analysis step S20.

After the first analysis step S20, subsequent processing of the method in different environments will be described later with reference to the detailed flow shown in FIG. 2B.

First of the different environments shown above:

The computer 11 does not use the scanned data 13 provided by the scanner 10. In connection with such an environment, the computer 11 stops performing storage, calculation processes, etc. on all the scanned data; Or stop processing the data 13 scanned from the scanner 10; Alternatively, there is a possibility of receiving a command from an external source instructing it to shut down the computer 11. Or in accordance with the rules of internal programs, the computer 11 should stop processing the data 13 scanned from the scanner 10. Thus, the computer 11 reports to the system 12 that it is not using the scanned data 13 provided by the scanner 10.

Thereafter, the system 12 executes at least one of the stopping step S210 and the generating step S211. The abort step S210 is for stopping the scanner 10 from providing the scanned data 13 to the computer 11, and the generating step S211 is for the computer 11 to use the scanned data 13. This is for generating information indicating that the user is not doing it.

When the scanner 10 provides the scanned data 13 to a plurality of computers including the computer 11, the abort step S210 closes the port to which the scanner 10 is connected to the computer 11. Can be realized in such a way that unnecessary power consumption can be reduced without affecting the storage and calculation processing for other computers where the scanned data 13 is needed.

Optionally, especially when the data 13 scanned by the scanner 10 is provided only to the computer 11, the interruption step S210 is: The system 12 shuts down the scanner 10 or enters a standby state. Controlling the scanner 10 so that this step is not shown in the figures for simplicity. This allows for a further reduction in power consumption than just stopping to provide the scanned data 13.

During the time period when the computer 11 does not use the scanned data 13 provided by the scanner 10, more scanned data will be generated if the scanner 10 does not stop scanning the object. . If the scanned data is not stored, the scanner 10 will have to scan the already scanned object (s) again when the computer 11 needs the scanned data 13 again; This is time consuming and uneconomical. Therefore, after the scanner stops providing the scanned data 13 to the computer 11, if the scanner 10 is still performing the scanning operation, the control step S21 is performed by the scanner 10. Preferably, the method further comprises storing the acquired scanned data 13 in a memory outside or inside the scanner 10. For simplicity, the abort step is not shown in FIG. 2B.

In this embodiment, the information for indicating that the computer 11 does not use the scanned data 13 generated in the generating step S211 is versatile. For example, it may simply be stored as a log of scanner 10 and / or computer 11, or may be visible or audible through human-computer interaction devices of computer 11, such as a display, loudspeaker, or the like. can be provided to a user of the computer 11 in an audible manner.

After the abort step S210, as shown in FIG. 2B, the method includes a second analysis step S22 for checking whether the computer 11 needs to use the scanned data 13, and a second analysis step S22. When the result of the analysis step S22 indicates that the computer 11 needs to use the scanned data 13, the scanner 10 provides the scanned data 13 to the computer 11. It further comprises a resume step (S23) to resume.

Since the computer 11 of this embodiment can identify and report whether it is necessary to use the scanned data 13, the system 12 can execute the computer 11 to perform the second analysis step S22. You can rely on reports from.

When the report from the computer 11 shows that the computer 11 needs to use the scanned data 13, the method enters step S23. In this step, the system 12 controls the scanner 10 to resume providing the scanned data 13 to the computer 11.

Second of different environments:

The first environment of the first embodiment is mainly used when the result of the first analysis step S20 indicates that the computer 11 is not using the scanned data 13 provided by the scanner 10. Focused. However, in the second environment of the first embodiment, the computer 11 uses the scanned data 13 provided by the scanner 10 for storage, comparison, and the like. Thus, computer 11 may report to system 12 that it is using the scanned data 13. Alternatively, the computer 11 does not make a report suggesting that it is using the scanned data 13. This depends on the agreement between the computer 11 and the system. The agreement can be realized by setting in advance.

In this environment, the scanner 10 will maintain providing the scanned data 13 to the computer 11.

2nd Example

A second embodiment of the present invention will be described with reference to FIG. 3 and in conjunction with FIGS. 2A-2C. In FIG. 3, the first device is STB 30 and the second device is TV 31. The STB 30 is connected to the TV 31 via an audio / video data cable. The STB 30 is used, for example, to provide data from a dedicated server to the TV. The system 32 may be integrated into the STB 30 or separated from the STB 30 and control the latter in a wired or wireless manner. In this embodiment, without losing generality, the system 32 is integrated into the STB 30 by way of example.

At a particular time instant, STB 30 provides first data 33 to TV 31. The first data 33 is, for example, AV (Audio and Video) content, images, letters, audible data, and the like, which are used by a family member away from home to the above-mentioned dedicated server using the family member's cell phone. Then sent by the server to the STB 30. Then, without losing generality, AV content including audio and video data is taken as an example and represented by AV content 33.

The first analyzing step S20 consists of the system 32 analyzing whether the TV 31 is playing the AV content 33 provided by the STB 30. The detailed internal flow is shown in Figure 2c.

The first analysis step S20 includes the steps as given below:

Acquisition Step S200: The system 32 collects the audio signal 34 output by the TV 31.

Comparison step S201: The system 32 collects the audio signal of the AV content 33 provided by the STB 30 to analyze whether the TV 31 is playing the AV content 33. The audio signal 34 is compared.

Optionally, the collecting step S200 may be realized by the microphone 300. In this embodiment, the microphone 300 is integrated into the STB 30 along with the system 32.

Thereafter, the method enters a comparison step S201. The system 32 compares the audio signal 34 with the audio signal of the AV content 33 provided by the STB 30. In order to increase the reliability of the comparison result, the collected audio signal 34 can be first filtered, for example for anti-aliasing, to remove portions with higher frequencies, so that aliasing during sampling This can be avoided.

The signal after filtering will also be sampled and quantized, ie analog-to-digital converted, where a digitized audio signal is obtained.

Since the sampling and quantization performed on the analog signal may introduce noise, it is desirable that after the digitized audio signal is obtained, other filtering processing may be performed on it to remove (or at least minimize) the noise. Do. In addition, the noise is not limited to noise introduced during sampling and quantization processing, which may also include environmental noise collected by microphone 300.

In addition, when the user is enjoying the AV content played by the TV 31, it is possible to raise or lower the output volume of the TV 31 according to the user's personal preference. This causes a difference in amplitude between the collected audio signal 34 and the original audio signal of the AV content 33.

Thus, prior to the comparison described above, it is desirable that the amplitude of the collected and finally digitized audio signal described above can be adjusted to match the original signal of amplitude to facilitate later comparison.

Preferably, the comparing step S201 considers the propagation time of the acoustic waves of the air. Thus, the audio signal of the AV content 33 provided at T ₀ by the STB 30 will not be collected by the microphone 300 until (T ₀ + T), where T is roughly the acoustic wave of the TV 31. Is the time taken to move from the loudspeaker 310 to the microphone 300.

There are many ways to compare the original audio signal with the digitized audio signal 34, one of which is to calculate cross-correlation, f _j represents the digitized audio signal 34, and g _i represents the AV content 33. Original audio signal (after digitization). The cross-correlation function is given by Equation 1 below:

Thus, by using i as a variable, this cross-correlation function point is multiplied by a point in the interval, and the obtained value is compared with a preset threshold to adjust the correlation between the collected audio signal 34 and the original audio signal. As such, it may be analyzed whether the TV 31 is playing the AV content 33 provided by the STB 30.

Those skilled in the art should appreciate that the calculation by the cross-correlation function is not the only way to make this comparison. For example, as shown in Equation 2, it can also be realized using the minimum mean squared error:

In the above equation, σ ² and τ are parameters preset in the STB 30. It can be analyzed whether the TV 31 is playing the AV content 33 provided by the STB 30 by calculating at N sampling points and comparing this sum with τ on the right side.

So far, the analysis result of the first analysis step S20 has been obtained.

If the TV 31 is still playing the AV content 33 provided by the STB 30, it is unnecessary to adjust the working state of the STB 30. The system 32 may execute the first analysis step S20 again without delay, or expires after a predefined time duration (eg several seconds to several tens of seconds). No more unnecessary details will be provided here.

Referring to FIG. 2B, when the TV 31 is not playing the AV content 33 provided by the STB 30, at least one of the stopping step S210 and the generating step S211 will be executed.

If the TV 31 is not playing the AV content 33, and the AV content 33 includes audio data and video data, in the abort step S210, the system 32, audio system or video data, It should be appreciated that the STB 30 can be controlled to stop providing both or both.

In the generating step S211, the STB 30 generates information indicating that the TV 31 is not playing the AV content 33. The information can be used to prompt the user enjoying the TV program to shut down the STB 30 by a remote controller or the like; The information may also be reported to the provider of the AV content 33 for statistics.

The stopping step S210 may be by stopping similar to when the user presses the 'STOP' key on the remote controller of the STV 30 to provide the AV content 33 to the TV 31; Cutting off power of the STB 30; Or it may be implemented in a variety of ways, such as switching the STB 30 to a standby state. In addition, turning off power or switching to standby helps save energy.

Optionally, after the abort step 210, the control step S21 further includes a storing step (not shown in the figures), wherein the storing step includes environments in which the first data is flow data or broadcast data of a media website. Mainly applicable to In that case, the system 32 itself stores the AV content 33 or controls the STB 30 to perform the storing process. This is in many circumstances, in particular the first data provided to the TV 31 by the STV 30 is not stored locally in the STB 30 but is generated from a third party and simply transmitted by the STB 30. When doing so, it is possible that the STB 30 does not back up the first data provided to the TV 31. Here, the provider of the AV content 33 transmits the captured AV content 33 to the STB 30 in real time through the server, and the STB 30 provides the AV content 33 to the TV 31. Stopping, and preferably, the STB 30 stores the AV content 33 within a time interval at which the provision of the AV content 33 is stopped. Automatic reproduction of the stored data can be performed when the user switches the TV 31 back to the channel served by the STB 30. Alternatively, the user may be prompted through a human-machine interface, and playback is done based on command input by the user.

After the STB 30 stops providing the AV content 33 to the TV 31, preferably, as shown in FIG. 2B, the method further includes the steps as given below: A second analyzing step S22 for analyzing whether 31) needs to use the first data, that is, the AV content 33; And the result of the second analysis step is that it is necessary to use the AV content 33 to cause the first device, i.e., the STB 30, to resume the operation of providing the AV content 33 to the TV 31. Resumption step (S23) used in the case.

In this embodiment, the result of the second analysis step S22 is to analyze whether the TV 31 needs to use (play) the AV content 33 provided by the STB 30. Can be obtained by collecting the audio signal output by < RTI ID = 0.0 >

The second analyzing step S22 further includes a substep of providing second data to the second device (not shown in the figures). This specifically means that the system 32 provides display information to the STB 30. Based on this information, the STB 30 then provides the second data to the second device, namely the TV 31. In this embodiment, the second data comprises audio data. Therefore, in the second analysis step S22, it is analyzed whether or not the TV 31 is using (playing) the second data. If the TV 31 is using the second data, the method enters step S23, where the STB 30 resumes providing the AV content 33 to the TV 31.

The second data may be audio data dedicated to the analysis and is not related to the AV content 33; Or audio data of the AV content 33. For example, in the abort step S201, only the STB 30 stops providing video data of the AV content 33 and continues to provide audio data as the second data.

By providing the second data, the second data can be received by the TV 31 upon returning back to the channel served by the STB 30 and subsequently played by the loudspeaker 310 and finally , It can be ensured that the microphone 300 is collected by the second analysis step S22.

The second analyzing step S22 according to this embodiment comprises substeps in addition to those described above for providing the second data, which substeps are: audio signal output by the second device, i. E. Collecting the ones not shown in the figures); To analyze whether the TV 31 is not using (playing) the second data (not shown in the figures), the audio signal output by the TV 31 is analyzed by the first device, that is, the STB 30. Comparing with the audio signal of the second data provided by.

Since the collection step of the second analysis step S22 is substantially the same as that described above (S200), and the comparison step of the second analysis step S22 is substantially the same as that described above (S201), unnecessary details are No more will be provided in this regard.

In the above paragraphs, embodiments are described in which the digitized audio signals are directly compared in the first and second analysis steps. Subsequently, an embodiment in which audio fingerprints are compared in the first and second analysis steps will be described. The first and second analysis steps share the same principle, and only the first analysis step is taken as an example later.

It should be appreciated that the present invention uses audio fingerprints as an example to illustrate the principles; It is not excluded that other kinds of fingerprints, such as video fingerprints, can be used to compare and match the two data portions.

Fingerprints represent a brief overview of audio or video content obtained from related aspects of audio or video content that can be perceived (also called robust hash). Fingerprints can be obtained, for example, by performing a hash transform on the audio or video content. Thus, audio or video fingerprints map audio or video data comprising a plurality of bits to finger prints having a very limited number of bits. In other words, fingerprints of audio or video data may represent audio or video data. Audio fingerprints may represent audio content; Video fingerprints can represent video content. If there are two pieces of audio or video content that are in different formats but with the same content, the fingerprints of one of them will match the other. There are many ways to obtain and compare audio fingerprints; Therefore, unnecessary details will no longer be provided in this regard.

It should be noted that any first / second data that can be obtained by the system or first device in which the fingerprints are provided by the present invention can be used to realize the comparison described above based on the audio fingerprints. . In this case, the most common first data that satisfies this condition is in the form of slides with background music. In accordance with an embodiment of the present invention, broadcast data carries finger print information when received by STB 30, and system 32 may control STB 30 to be stored for comparison. Preferably, the fingerprint information is formed by basic audio fingerprints of the corresponding broadcast content.

Therefore, in the first analysis step S20, first of all, the characters of the first or second data provided to the TV 31 by the STB 30 are identified. If the comparison can be performed using audio fingerprints, the audio fingerprints will be selected as the objects to be compared. Otherwise, the audio signal itself will be compared in the analog domain or the digital domain.

Thereafter, the system 32 or the STB 30 under the control of the system 32 will use the audio signal collected by the microphone 300 to generate fingerprints of the collected audio signal. The interval for collecting audio fingerprints is from a few seconds to several tens of seconds.

Thereafter, the generated fingerprints will be compared with the pre-stored fingerprints. When the similarity between the audio fingerprints of the collected audio signal and the pre-stored audio fingerprints meets a predefined condition, the TV 31 plays the first or second data provided by the STB 30 and Yes can be established.

The technique given for the second embodiment mainly talks about solutions in which audio signals are compared in the digital domain. According to a variant of the second embodiment, the analog audio signals can be directly processed and compared in the first and second analysis steps.

In the second embodiment and the above-described variants, the judgments are based on the audio signals; This is because the channels between the existing STB, DVD and the TV are unidirectional. That is, the TV cannot provide feedback information to the STB and the DVD. Therefore, the STB cannot know whether the TV is playing the media content provided by it according to the active feedback. Those skilled in the art can clearly realize the concept of the invention in the scenarios given below, in accordance with the disclosures of the invention, all implementations being limited only by the appended claims of the invention. It should be noted that it is within the scope of protection. The environments are as follows:

In one of the scenarios, there is a feedback channel between the TV and the STB: this is wired or wireless. In that feedback channel, the TV can report directly to the STB that "I switched to a different channel than the channel you are servicing." Therefore, based on the report, the STB may be controlled to execute at least one of the abort step S210 and the generate step S211 described above.

Those skilled in the art will appreciate that integrating the microphone into the STB, i.e., the first device, is not the only way to realize the present invention. For example, the microphone may also be installed on a remote control that is generally opposite to the TV.

In the above paragraphs, a method of controlling a working state of a first device according to embodiments of the present invention is described with reference to the accompanying drawings. The system corresponding to the method will then be described and the description will be abbreviated since the functions of the elements and units of the system have already been described in detail in the form of steps. Those skilled in the art will appreciate that this will not affect the full disclosure of the invention by the specification.

4A and 4B show block diagrams of a system for controlling a working state of a first device according to the first and second embodiments of the present invention, respectively. The system 4 is configured to analyze whether the second device is using the first data provided by the first device, that is, the first element 40 performing the first analysis step S20. ; And a second element 41 configured to control the working state of the first device according to the analysis result of the first element 40, that is, to perform the control step S21.

Preferably, as shown in FIG. 4B, the first element 40 is adapted to the collection step (if the first data comprises audio signals (eg, AV content 33 in the second embodiment). A first unit 400 configured to execute S200; And a second unit 401 configured to execute the comparing step S201.

The second element 41 comprises at least one of the third unit 410 and the fourth unit 411. The third unit 410 is configured to execute the interruption step S210, and the fourth unit 411 is configured to execute the generation unit S211.

In this case, the third unit 410 causes the first device to stop providing the first data to the second device, or cuts off the power of the first device by the first module 4100 therein.

Preferably, the second element 41 is configured to execute the storing step when the third unit causes the first device to stop providing the first data to the second device. More).

Preferably, the system 4 controls whether the second device needs to use the first data when the third unit 410 controls the first device to stop providing the first data to the second device. A third element (42) configured to analyze whether or not, that is, configured to execute the second analyzing step (S22); And when the result obtained by the third element 42 suggests that the second device needs to use the first data, causing the first device to resume providing the first data to the second device. That is, it further comprises a fourth element 43 configured to carry out the step S23.

Preferably, the third element further comprises a sixth unit 420 configured to carry out the step of providing second data.

The third element is further configured to compare the audio signal output by the second device with the audio signal of the second data provided by the first device to analyze whether the second device is using the second data, That is, the apparatus further includes a seventh unit 421 configured to execute the comparing step in the second analyzing step.

In addition, the third element is that if the analysis result obtained by the fourth element 43 is that the second device is using the second data, that is, the second device needs to use the first data. Further comprises an eighth unit 422 configured to cause the first device to resume providing the first data to the second device, ie configured to execute the continuous step.

Since the functions of the seventh unit 421 and the first unit 400 are substantially the same, the functions of the eighth unit 422 and the second unit 401 are substantially the same, and those skilled in the art When actually implementing the present invention, the seventh unit 421 and the first unit 400 may be realized by the same unit, and similarly the eighth unit 422 and the second unit 401 may also be in the same unit. It will be appreciated that it can be realized by.

Since the given technique with respect to this method described the functions of the elements, units and modules described above as well as the steps performed by these elements, units and modules, unnecessary details will not be provided here.

Those skilled in the art will appreciate that any one of the first to fourth elements, the first to eighth units, and the first module may be implemented by software, hardware, or a combination thereof, for example, a memory or a hard disk. It will be appreciated that the code / instructions and processor stored therein may be realized. All these implementation modes are within the scope of protection limited only by the appended claims of the present invention.

When the same processor operates with different instructions / codes, the above-described elements, units, modules can be used to realize the multiple microprocessors to work together to realize the element or unit or module. You should know that you can.

While embodiments of the invention have been described above, those skilled in the art should recognize that various modifications may be made without departing from the scope and spirit of the appended claims.

Claims (15)

A method for controlling a working status of a first device, wherein the first device (10, 30) is connected with a second device (11, 31).
A first analyzing step (S20) for analyzing whether the second device is using first data (13, 33) provided by the second device;
And a control step (S21) for controlling a work state of the first device based on a result of the first analysis step. The method of claim 1,
The first data includes audio data and the first analyzing step comprises:
Collecting an audio signal output by the second device (S200);
Comparing the audio signal output by the second device with the audio data included in the first data to analyze whether the second device is using the first data (S201). The first device working state control method. The method of claim 1,
If the result of the first analysis step suggests that the second device is not using the first data, the control step is:
Stopping the providing of the first data to the second device by the first device (S210); or
-Generating at least one of (S211) information indicating that the second device is not using the first data. The method of claim 3, wherein
The stopping step (S210) further comprises the step of shutting off power of the first device. The method of claim 3, wherein
Wherein said controlling step comprises said stopping step, and wherein said controlling step further comprises storing said first data. The method of claim 3, wherein
When the control step comprises the abort step, the method:
A second analyzing step (S22) for analyzing whether the second device needs to use the first data; And
If the result of the second analyzing step is that the second device needs to use the first data, causing the first device to resume providing the first data to the second device. The method further comprises a step (S23). The method according to claim 6,
The second analysis step is:
Providing, by the first device, second data to the second device, the second data comprising audio data;
Collecting the audio signal output by the second device;
Comparing the audio signal output by the second device with the audio signal of the second data provided by the first device to analyze whether the second device is using the second data. And a first device working state control method. A system 12, 32, 4 for controlling a work state of a first device, wherein the first device 10, 30 is connected with a second device 11, 31, wherein the first device work state control system For (12, 32, 4):
A first element (40) configured to analyze whether the second device is using first data (13, 33) provided by the second device;
And a second element (41) configured to control the working state of the first device based on the result of the first analyzing step. The method of claim 8,
The first data comprises audio data and the first element 40 is:
A first unit (400) configured to collect an audio signal output by the second device;
A second configured to compare the audio signal output by the second device with the audio data included in the first data to analyze whether the second device is using the first data (S201) And a unit (401). The method of claim 8, wherein the second element (41) is:
If the result of the first analysis step suggests that the second device is not using the first data provided by the first device, then the first device causes the first device to send the first data to the second device. A third unit 410, configured to stop providing; or
If the result of the first analysis step suggests that the second device is not using the first data provided by the first device, it indicates that the second device is not using the first data And at least one of a fourth unit (411) configured to generate information. The method of claim 10,
And the third unit further comprises a first module (4100) configured to power off the first device. The method of claim 10,
The second element further comprises a fifth unit (412) configured to store the first data. The method of claim 10,
A third element (42) configured to analyze whether the second device needs to use the first data when the first device stops providing the first data to the second device; And
If the result of the third element is that the second device needs to use the first data, configured to cause the first device to resume providing the first data to the second device. And a fourth element (43). The method of claim 13, wherein the third element is:
A sixth unit (420) configured to cause the first device to provide second data to the second device, the second data comprising audio data;
A seventh unit (421) configured to collect the audio signals output by the second device;
And configured to compare the audio signal output by the second device with an audio signal of the second data provided by the first device to analyze whether the second device is using the second data. A first device working state control system comprising eight units (422). The method of claim 14,
And the second data is audio data of the first data.

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